CN1229085C

CN1229085C - Posture correcting device, method for making same and chair

Info

Publication number: CN1229085C
Application number: CNB031020216A
Authority: CN
Inventors: 藤田稔; 室谷良子
Original assignee: Foot Techno Inc
Current assignee: Foot Techno Inc
Priority date: 2002-01-24
Filing date: 2003-01-24
Publication date: 2005-11-30
Anticipated expiration: 2023-01-24
Also published as: US7024712B2; CN1433741A; KR20030064314A; JP2003284620A; US20030173816A1; EP1330973A3; EP1330973A2; KR100758430B1

Abstract

A seat pad is provided with a lower pad member and a upper pad member that is attached to the lower pad member by an adhesive. A pair of projections is formed at the front portion of the seat pad. A concave is defined between the projections. The upper surface of the seat pad is inclined to be lower toward the front end of the seat pad when the seat pad is put on a seat of a chair. When a person sits on the seat pad, a pelvis is held in a proper position, which improves the flow of blood and the behavior of nerve.

Description

Posture correction device and manufacture method thereof and chair

Technical field

The present invention relates to a kind of backer's buttocks (hip) thus make pelvis be in the posture correction device and the manufacture method thereof of tram and a kind of chair.

Background technology

Usually, being arranged on seat cushion on the seats mainly is to be used for protecting buttocks not catch cold and to improve the sensation of taking one's seat.Seat cushion is, for example, and by what form in the sheet of foamed synthetic resin or Cotton Gossypii being filled in bag shape.The thickness of whole seat cushion is consistent constant.Perhaps, seat has the part of buttocks more empty than other parts on the seat cushion.

Shown in Figure 11 (a) and 11 (b), people's pelvis 36 comprises: a pair of ilium (iliac bones) 37; Rumpbone 39, it passes through sacroiliac joint (sacroiliac) 38 between described ilium 37; And ischium (ischial bone) 40, it is connected with the lower end of ilium 37.Spinal column 41 comprises the 5th joint lumbar vertebra 42 that is positioned at bottom.The 5th joint lumbar vertebra 42 is connected on the rumpbone (sacrum) 39 by joint (articulation) 43.When buttocks was seated on the above-mentioned seat, rumpbone 39 may not keep its correct position.Therefore, between the 5th joint lumbar vertebra 42 and joint 43, torsional deformation be will produce, blood flow and neurobehavioral worsened.Can cause like this takeing on stiff, pain along the spinal column (lower back pain) and catching cold.

Summary of the invention

Thereby the purpose of this invention is to provide a kind of buttocks of supporting makes pelvis be in the posture correction device and the manufacture method thereof of tram and chair.

For achieving the above object, the invention provides a kind of posture correction device, described device is a shape of cushion, and it has the stayed surface that supports anthropolith, and wherein said device comprises front-end and back-end,

The thickness of wherein said device reduces on the direction from the rear end to the front end, thereby when the stayed surface upper support had human body a part of, described stayed surface was downward-sloping on the direction from the rear end to the front end, and described device is characterised in that,

Described device has a pair of projection at front end, and is formed with groove between projection.

The present invention also provides a kind of chair that has the seat.Described seat is towards being sitting in the front side of the people on the seat to downward-sloping.

The present invention also provides a kind of method that is used to make the posture correction device that is shaped as mat.Described device comprises the stayed surface that is used for the support section human body.The thickness of device is more and more littler on the direction from its rear end to the front end.Described method comprises: prepare the step of plate (sheet piece), wherein plate is to be made by the higher material of relative hardness, and wherein said plate has predetermined width and thickness; Thereby obtain the step of two lower plates (lower piece) along the thickness direction cutting plate of plate, wherein the thickness of every lower plate changes on the width of plate; The upper plate (upper piece) that to make by relative softer material thus adhere to lower plate one of them go up the step of the plate of acquisition shape of cushion; With with the cutting of the plate of shape of cushion or strike out the step of reservation shape, thereby obtain a large amount of this devices.

In addition, the invention provides the method that a kind of manufacturing is shaped as the posture correction device of mat.Described device comprises the stayed surface that is used to support anthropolith.The thickness of device is more and more littler on the direction from its rear end to the front end.Described device comprises having surface-supported the pad parts and the underlay parts that link to each other with last pad parts gone up.The hardness of last pad parts is different with the hardness of underlay parts.Described method comprises the steps that mould is injected in the fused materials while or the compartment of terrain that will be used for filling up the fused materials of parts and being used for the underlay parts, thus molded and shaped described device.

The invention provides the method that another kind is used for making the posture correction device of shape of cushion.Described device comprises the stayed surface that is used to support anthropolith.The thickness of device is more and more littler on the direction from its rear end to the front end.Described device comprises having surface-supported the pad parts and the underlay parts that link to each other with last pad parts gone up.The hardness of described upward pad parts is different with the hardness of underlay parts.Described method comprises: the step of one of them of prior preparation last pad parts and underlay parts; Described pad parts are put into the step of mould; The fused materials of another pad parts is injected the described step of holding the mould of above-mentioned pad parts, thus molded and shaped described device.

By hereinafter in conjunction with the accompanying drawings, and illustrate that in the mode of example the description of the principle of the invention is appreciated that other aspects of the present invention and advantage.

Description of drawings

By with reference to hereinafter to the description of preferred embodiment and accompanying drawing can be best understand the present invention and purpose and advantage, wherein:

Fig. 1 is the axonometric chart of expression according to an embodiment of seat cushion of the present invention;

Fig. 2 is the sectional side view of the seat cushion of presentation graphs 1;

Fig. 3 is the preceding profile of the seat cushion of presentation graphs 1;

Fig. 4 is the plane graph of the seat cushion of presentation graphs 1;

Fig. 5 is the axonometric chart that the step of plate is made rigid plastic sheet in expression;

To be expression make axonometric chart as the step of the lower plate of underlay parts with plate to Fig. 6;

Fig. 7 is the axonometric chart of the step of the expression plate of making shape of cushion;

Fig. 8 is the axonometric chart that the step of mat is made the plate of shape of cushion in expression;

Fig. 9 is the plane graph that expression is arranged on seat cushion the state on the chair;

Figure 10 is the side view of expression seat cushion user mode;

Figure 11 (a) is the plane graph of expression pelvis;

Figure 11 (b) is the side view of expression spinal column and rumpbone;

Figure 12 is the plane graph of expression seat cushion user mode;

Figure 13 is the plane graph of another embodiment of expression seat cushion;

Figure 14 is the plane graph of an embodiment again of expression seat cushion;

Figure 15 is the also front view of an embodiment of expression seat cushion;

Figure 16 is the front view of the another embodiment of expression seat cushion;

Figure 17 is the front view of the another embodiment of expression seat cushion;

Figure 18 (a), 18 (b) and 18 (c) are that expression utilizes mould to form the profile of the method for seat cushion;

Figure 19 is the side view that the chair of described seat cushion is used in expression;

Figure 20 is the side view that expression includes the chair of correcting posture function;

Figure 21 is the sketch map that expression has the automobile at the seat of using described seat cushion;

Figure 22 is the axonometric chart of another embodiment of the described seat cushion of expression;

Figure 23 is the also axonometric chart of an embodiment of the described seat cushion of expression;

Figure 24 is the profile of the another embodiment of expression seat cushion;

Figure 25 is the chart of the relation between express time and the blood flow capacity (blood flow volume); With

Figure 26 is the chart of the relation between express time and the blood flow capacity.

The specific embodiment

Referring now to accompanying drawing 1 to 12 embodiments of the invention are described.

As shown in Figure 1, the seat cushion 11 as posture correction device comprises underlay parts 12 and the upward pad parts 13 that are connected with underlay parts 12 by binding agent 14.Form a pair of

projection

11a, 11b in the front portion of seat cushion 11.At projection 11a, form groove 11c between the 11b.Rear portion at seat cushion 11 forms slit 11d.Slit 11d is positioned at the mid portion of the width of seat cushion 11.Slit 11d extends to the front portion from the rear end of seat cushion 11.

In Fig. 2, T1 represents the thickness of the rear end of underlay parts 12.T2 represents the thickness of the front end of underlay parts 12.T3 represents to fill up the thickness of the rear end of parts 13.T4 represents to fill up the thickness of the front end of parts 13.The thickness T 2 of underlay parts 12 is less than thickness T 1.But, on to fill up the thickness T 4 of parts 13 identical with T3.That is fill up parts 13, and have constant thickness.In underlay parts 12, being separated by forward with the rear end and from the rear end one is defined as rear region A apart from the part between the divided portion.Rear region A has constant thickness T 1.The zone of underlay parts 12 except that rear region A is area B, and the thickness in the area B is reduced to thickness T 2 along with underlay parts 12 extend forward from thickness T 1.Rear region A length is, for example, and 0-10cm or 5-8cm.Forefoot area B length is, for example, and 10-25cm or 12-15cm.Seat cushion 11 width are, for example, and 15-45 or 15-200cm.

The thickness T 1 of underlay parts 12 is set to 3-30mm, 5-25mm or 7-15mm.The thickness T 2 of underlay parts 12 is set to 0-30mm or 2-25mm.The thickness T 3 and the T4 of last pad parts 13 are set to 1-30mm or 3-25mm respectively.Thickness T 1 to T4 is used (time that for example, continues seat) decision by the expection of seat cushion 11.In the seat cushion 11 that is adapted at using in the scope in two hours, for example, the thickness T 2 that the thickness T 1 of underlay parts 12 is set to 3-30mm or 5-25mm and underlay parts 12 is set to 0-15mm or 1-10mm.For example, underlay parts 12 have the thickness T 1 of 12mm and the thickness T 2 of 4mm.The thickness T 3 and the T4 of last pad parts 13 are set to 15mm respectively.

In the seat cushion 11 that be fit to use more than two hours, the thickness T 1 of underlay parts 12 and T2 be adapted at two hours scopes in seat cushion 11 identical of use, on fill up parts 13 thickness T 3 and T4 variation has taken place.For example, thickness T 3 and T4 are set to 10mm respectively.In being fit to many hours seat cushion 11 of use, thickness T 3 and T4 are set to 1-7mm or 2-5mm respectively.Last pad parts 13 are especially thick, increase the speed of blood flow, make the people who is sitting on the seat cushion 11 feel (heavy) tired out.Therefore, the pad parts 13 of going up in the seat cushion 11 were used a plurality of hours with suitable than thin.

The thickness T 1 of underlay parts 12 can be set to 3-30mm or 3-20mm, the thickness T 2 of underlay parts 12 can be set to 0-15mm or 1-10mm, the thickness T 3 of last pad parts 13 can be set to 1-30mm or 5-25mm, and upward the thickness T 4 of pad parts 13 can be set to 0-30mm or 3-25mm.In being applicable to child's seat cushion, on fill up parts 13 thickness T 3 and T4 be set to 1-13mm or 2-5mm respectively.The thickness T 1 of underlay parts 12 is set to 1-30mm or 3-25mm.The thickness T 2 of underlay parts 12 is set to 0-15mm or 0-10mm.The whole size of seat cushion 11 is than little many of the seat cushion that is applicable to the adult.

As shown in Figure 4, the length L of slit 11d is set to, for example, and 1-10cm and be set to 5cm in the present embodiment.The A/F W of slit 11d is set to, for example, and 0-7mm or 2-5mm and be set to 1mm in the present embodiment.In addition, the width D of the inner of slit 11d is set to, for example 1-20mm or 3-15mm and be set to 5mm in the present embodiment.

When seat cushion 11 was placed on the seats of level, the upper surface of seat cushion 11 (stayed surface) inclination angle at seat relatively was 2-30 degree or 5-28 degree.This inclination angle is preferably 4-20 degree or 5-15 degree, more preferably 5-8 degree.This inclination angle is corresponding with the angle that lower surface and upper surface by seat cushion 11 forms.

Underlay parts 12 are made by adhesive-bonded fabric (nonwoven fabric), rubber or resin.Underlay parts 12 can be the synthetics of at least a rubber and at least a resin formation.Rubber, resin and described synthetic can be solid (solid) or foamed.Described rubber can preferably adopt the synthetic rubber such as butadiene-styrene rubber (SBR) (styrene butadiene rubber).Can preferably use ethene-vinyl acetate (ester) copolymer resin (EVA) (Ethylene-polyvinylacetate copolymer resin), polyurethane resin (polyurethane resin), polyvinyl resin (polyethylene resin), vinyl chloride resin (vinyl chloride resin) or polypropylene resin (polypropylene resin).

Last pad parts 13 are made by rubber, resin or by the synthetic of at least a rubber and at least a resin formation.Rubber, resin and synthetic can be solid (solid) or foamed.Preferably, described rubber preferably adopts such as chloroprene rubber (chloroprene rubber), acrylonitrile butadiene rubber (acrylonitrile butadiene rubber) (NBR), polyisoprene rubber (polyisoprene rubber), or the synthetic rubber of polybutadiene rubber (polybutadiene rubber), natural rubber (natural rubber) and caoutchouc latex, resin preferably adopt polyurethane resin (polyurethane resin), fluoroplastics (fluoroplastic) and organic siliconresin (silicone resin).

The hardness of underlay parts 12 is arranged on 15 degree to the scope of 85 degree, for example is set to 50 degree.The hardness of last pad parts 13 is arranged on 2 degree to the scope of 30 degree, for example is set to 11 degree.Adopt Japanese Industrial Standards: JIS-K6253:E class durometer (durometer) and Japan rubber community reference standard: C class durometer (spring hardness test machine) is measured the hardness of pad parts.Chemistry evaluation and institute (Chemicals Evaluation and Research Institue) Osaka office utilize two kinds of durometers to measure the pad parts respectively.The result that durometer measures is basic identical.

Take following factors into consideration and determine the material and the hardness of underlay and last pad parts 12,13.In other words, determine that the material of underlay parts 12 and hardness make that underlay parts 12 produce recessed slightly when the human buttock sits on cushions.The hardness of underlay parts 12 is preferably the 35-75 degree and more preferably is the 50-62 degree.On the other hand, fill up the parts 13 preferred materials that adopt soft cystose (softfoamed) on thickness.Specifically, described foam-like material is a toughness and softish.As above fill up parts 13 and be fur with too soft as common mat the same, then be not preferred, because people's buttocks can be absorbed in wherein.The preferred hardness of last pad parts 13 is 5-20 degree and more preferably is the 10-13 degree.

The method of making seat cushion 11 is described referring now to accompanying drawing 5 to 8.

At first, as shown in Figure 5, animi resin plate (hard material) 21 is cut into many plates 22.This animi resin plate 21 is made by the foam plastics of EVA resin (ethene-vinyl acetate (ester) copolymer resin) or the foam plastics (foam of polyurethane resin) of polyurethane resin.

Then, as shown in Figure 6,, thereby form two block-shaped identical lower plates 24 along every block of plate 22 of predetermined line of cut 23 cuttings.Form a plurality of underlay parts 12 by every lower plate 24.The thickness of lower plate 24 changes according to the thickness of underlay parts 12 on the width of plate 22.

Then, as shown in Figure 7, be ready to the upper plate of making by the foam plastics of the foam plastics of chloroprene rubber (chloroprene rubber) or polyurethane resin (polyurethane resin) (soft material) 25.Utilize upper plate 25 to form a plurality of pad parts 13 of going up.On the upper surface of the lower plate 24 that upper plate 25 utilizes binding agent 14 to be bonded to obtain, thereby form the plate 26 of shape of cushion in the step of Fig. 6.

Then, the plate 26 of the shape of cushion that the predetermined line of cut 27 in edge will obtain in the step of Fig. 7 cuts into or becomes reservation shape by the forcing press punching, as shown in Figure 8, thereby forms seat cushion 11.

Seat cushion 11 according to above explanation manufacturing is coated with fabric.The material of fabric is preferably synthetic fibers or the natural fiber such as polyester (polyester) and nylon (nylon), and this fiber is the elasticity braiding.Polyurethane line (polyurethane thread) can be used for obducent material.Described covering can be blended cloth (blended fabric) or fabric (knit).In addition, obducent material can be artificial skin (leatherette) or artificial leather.Other elastomeric materials also can be used as covering.Covering preferably carries out anion and handles (minus ion processing) or far infrared radiation processing.

Fig. 9 represents that seat cushion 11 is placed on the state on the seat 32 of chair 31.The projection 11a of

seat cushion

11,11b represent the place ahead (below of Fig. 9).Figure 10 represents that a people is sitting in the situation on the seat cushion 11 of above-mentioned state.The upper surface of seat cushion 11 is downward-sloping on the direction on (left side of Figure 10) easily forwardly.Therefore, human body 33 turns forward and corrects pelvis 36 naturally to turn forward.This can treat stiff, the spinal column pain along the spinal column of shoulder and catch cold and hip-lifting effect is arranged.Below with illustration.

Shown in Figure 11 (a) and 11 (b), people's pelvis 36 comprises: a pair of ilium 37; Rumpbone 39, it passes through sacroiliac joint (sacroiliac) 38 between ilium 37; And ischium 40, its lower end with ilium 37 is connected.Spinal column 41 comprises the 5th joint lumbar vertebra 42 that is positioned at bottom.The 5th joint lumbar vertebra 42 is connected on the rumpbone 39 by joint 43.When the people was sitting on the seat cushion 11, as shown in figure 10, seat cushion 11 turned forward ischium 40 slightly.This makes the sacroiliac joint 38 between rumpbone 39 and ilium 37 be moved.The posture of rumpbone 39 remains forward-lean state, and this is the correct status of rumpbone 39.Therefore, the posture of spinal column 41 has obtained rectification, thereby has improved flowing and neurobehavioral of blood.Specifically, use seat cushion 11 can easily keep correct posture, improve blood operation and human activin function.In addition, seat cushion 11 treatment pain along the spinal column.

The purposes of the seat cushion 11 of present embodiment is as follows.As shown in figure 12, under the state that human body 33 leans on backward, a plurality of seat cushions 11 can be coated over, for example, and under the top of the back of the body and the bottom of the back of the body.Perhaps, one or more seat cushions 11 can be placed between the backrest and the back of the body of leisure chaise longue.In addition, when the portrait Japanese equally takes a seat (his/her lower limb is placed on below his/her health), lower limb intersect stretch or lower limb horizontal when folded, seat cushion 11 can be coated over the buttocks subordinate in this state.

The seat cushion 11 of present embodiment has following advantage.

(1) when seat cushion 11 is placed on the seat 32 of chair 31, the upper surface of seat cushion 11 is downward-sloping on direction forward.When the people was sitting on the seat cushion 11, pelvis 36 remained on correct position.The operation and the neurobehavioral of blood have been improved like this.

(2) seat cushion 11 has underlay parts 12 and the upward pad parts 13 that are connected with underlay parts 12 by binding agent 14.The hardness of last pad parts 13 is less than the hardness of underlay parts 12.Last pad parts 13 are softer relatively, guarantee the comfortableness that takes a seat and the people is sitting on the seat cushion 11 for a long time.Last pad parts 13 also stably support buttocks to make that buttocks can be from seat cushion 11 landings of tilting.Suitably hard underlay parts 12 and the suitably soft pad parts 13 of going up allow ischium 40 easily freely to move on seat cushion 11.Improved the operation of blood like this.

(3) seat cushion 11 has a pair of projection 11a, 11b.Be formed with groove 11c between projection 11a, the 11b.As shown in figure 10, when the people was sitting on the chair 31, right thigh and left thigh were supported by corresponding

projection

11a,

11b respectively.Projection

11a, 11b move according to the moving horizontally of thigh of correspondence.Improve the sensation that takes a seat like this.In addition, as shown in figure 12, when the people leaned against on the chair, projection 11a, the 11b of seat cushion 11 moved according to the back of human body 33.Improve the sensation that leans on like this.

(4) the slit 11d of seat cushion 11 allows the mobile generation plastic deformation of seat cushion 11 according to buttocks.The sensation that this improvement takes a seat.

(5) hardness of underlay parts 12 is set to 15-90 degree or 20-85 degree.The hardness of last pad parts 13 is set to the 2-25 degree.Therefore, when using seat cushion 11, the comfort that can keep suitable cushion (cushion) performance and obtain to use.

(6) thickness of underlay parts 12 become on the direction of cushion part 12 from the rear end to the front end more and more littler on the pad parts 13 thickness then remain unchanged.The softer relatively pad parts 13 of going up flexibly support buttocks.Therefore, the people can be comfortably seated on the seat cushion 11 and imperceptible underlay parts 12 tilt.

Last pad parts 13 can be provided with the surface of inclination according to position of expecting and effect.In this case, the relative horizontal plane in the inclination angle of the upper surface of seat cushion 11 is set to 2-30 degree or 5-28 degree.The inclination angle is preferably 4-20 degree or 5-15 degree, more preferably is the 5-8 degree.

(7) when making seat cushion 11, the plate of being made by relative harder material 21 is carried out machined, thereby obtain lower plate 24.Lower plate 24 connects to obtain the plate 26 of shape of cushion with the upper plate of being made by relative softer material 25.The plate 26 of 27 pairs of shape of cushion of line of cut that the edge is predetermined cuts or pressurizes to obtain seat cushion 11.Therefore, be easy to manufacturing and have double-deck seat cushion 11, thereby reduce manufacturing cost.

Present embodiment can carry out following modification.

As shown in figure 13, can omit the slit 11d of seat cushion 11.

As shown in figure 14, can omit

projection

11a, 11b and the groove 11c of seat cushion 11.

Figure 15,16 and 17 is respectively the front view of other embodiment of expression seat cushion 11.The thickness of seat cushion 11 changes at width, makes that the upper surface of seat cushion 11 deforms easily according to the shape of buttocks when the people is sitting on the seat cushion 11.Improve the sensation that takes a seat like this.

Shown in Figure 18 (a), at first mould 51 and have between second mould 52 of the second die cavity 52b and be formed with molded die cavity with first die cavity 51b.Fused rubber or fused resin inject

die cavity

51b, 52b by cast gate (inlet) 51a, 52a respectively, thus molded underlay parts 12 and last pad parts 13 simultaneously, on to fill up parts 13 different with the hardness of underlay parts 12.The melted material that is used for filling up parts 13 injects by the first cast gate 51a and the melted material that is used for underlay parts 12 injects by the second cast gate 52a.Interval with rule injects described melted material by cast gate 51a, 52a.

Shown in Figure 18 (b), the underlay parts of making in advance 12 can be placed among the second die cavity 52b of second mould 52 and the melted material that is used for filling up parts 13 can be injected into the first die cavity 51b of first mould 51.On the contrary, shown in Figure 18 (c), on fill up among the first die cavity 51b that parts 13 can be placed on first mould 51 and the melted material that is used for underlay parts 12 can be injected into the second die cavity 52b of second mould 52.

To each embodiment shown in 18 (c), melted material injects mould respectively at Figure 18 (a), so that

pad parts

12,13 interconnect.

As shown in figure 19, can be formed with admittance groove 32a and seat cushion 11 on the seat 32 of chair 31 can be placed among the groove 32a.Seat cushion 11 is bonded to its surface by binding agent not to be had on the seat 32 of groove 32a for the plane.

As shown in figure 20, the seat 32 of chair 31 is downward-sloping gradually on the direction of forward direction.The inclination angle at seat (stayed surface) 32 with respect to the horizontal plane becomes the 2-30 degree.Preferred inclination angle is the 5-15 degree, and 5-8 degree more preferably.In this case, chair 31 just can be used as posture correction device.

As shown in figure 21, seat cushion 11 can be arranged on the seat 56 of automobile 55.The upper surface at seat 56 is downward-sloping on the forward direction direction.This inclination angle with respect to the horizontal plane is configured to 2-30 degree or 5-28 degree.

As shown in figure 22, can be formed with groove 57a on the upper surface of posture correction device 57, its shape is corresponding with the shape of buttocks, thus the stable support buttocks.

As shown in figure 23, the central authorities at seat cushion 11 can form hole 11e.The shape of hole 11e can be circular, shown in solid line among the figure, or is oval, shown in two chain line.The internal diameter of hole 11e is set in a lateral direction seat cushion 11,2-10cm for example, and on the width of seat cushion 11, be set to 3-13cm.Can form groove and not form the hole 11e that penetrates seat cushion 11.Hole 11e prevents that with groove the anus that is sitting in the people on the seat cushion 11 from directly contacting with seat cushion 11.。Therefore, this seat cushion 11 is more favourable concerning the people who suffers from hemorrhoid.

In Figure 23, the slit 11d of seat cushion 11 can be connected to hole 11e or not be connected with it.

As shown in figure 24, the thickness of underlay parts 12 is more and more littler on from the rear end of underlay parts 12 to the direction of front end.The thickness of last pad parts 13 also can from the rear end of pad parts 13 to the direction of front end become more and more littler.In addition, in seat cushion 11 as shown in figure 24, the thickness of rear region A seat cushion 11 the same can remaining unchanged as shown in Figure 2.

Seat cushion 11 can have three layers, and is not shown.That is, underlay parts 12 and on pad fill up parts in being provided with between the parts 13.These three layers pad parts can bond together or by clinkering (melting) together.Like this, the hardness of middle pad parts can be greater than the hardness of last pad parts 13 less than the hardness of underlay parts 12.Perhaps, the hardness of middle pad parts can be greater than the hardness of underlay and

last pad parts

12,13, and the hardness of underlay parts 12 can be with the same big of last pad parts 13 or greater than the hardness of last pad parts 13.Seat cushion 11 can be followed the motion of buttocks at an easy rate.Can reduce the middle age of this seat cushion 11 of use or old people's fatigue like this.In the present embodiment, the inclination angle of the upper surface of seat cushion 11 and seat cushion 11 shown in Figure 1 is the same.

In seat cushion 11 with three-decker, on fill up parts 13 hardness be arranged on the 2-30 degree, be preferably 5-20 degree or 7-15 degree, and more preferably be the 10-13 degree.The hardness of middle pad parts is set to the 10-85 degree, is preferably the 10-13 degree, 40-70 degree, 45-60 degree, 50-60 degree or 55-58 degree.When the hardness of underlay parts 12 during greater than middle pad parts, the hardness of underlay parts 12 is 15-90 degree or 20-85 degree, is preferably 55-85 degree or 50-80 degree, and more preferably is the 60-70 degree.On the contrary, when the hardness of underlay parts 12 during less than middle pad parts, the hardness of underlay parts 12 is 3-45 degree or 5-40 degree, is preferably 7-35 degree or 10-30 degree, and more preferably is 13-25 degree or 15-20 degree.Seat cushion 11 with three-decker is applicable to the situation that needs high cushion performance.The hardness separately of described three pad parts suitably is set, so that people who is applicable to the people who suffers from the bent back of the body or pain along the spinal column or uses wheelchair and the seat cushion 11 that the normal person uses to be provided.

Described seat cushion 11 can have only one deck, and is not shown.Specifically, seat cushion 11 can be made by a kind of material.

The thickness of seat cushion 11 can reduce on the direction of forward direction discretely along with seat cushion 11.

The thickness of underlay parts 12 can change discretely, can keep steady state value and go up the thickness that fills up parts 13.

The thickness of last pad parts 13 can change continuously or change discretely.Like this, the thickness of underlay parts 12 can keep definite value or change.

The hardness of underlay parts 12 can be less than the hardness of last pad parts 13, and this is opposite with seat cushion 11 shown in Figure 1.

Thereby the die cavity that melted material can be injected mould forms underlay parts 12 or goes up pad parts 13.

When forming

pad parts

12,13 with different material, thus to the apparent surface of

pad parts

12,13 one of them carries out thick Surface Machining or coating subbing realize the connection that can make us accepting between

pad parts

12,13 at least.

In having the seat cushion of composite construction, layer can be different with material or foam rate between the layer, so that the hardness between layer and the layer is different.This can be applied to the seat cushion made to the course of processing of the embodiment shown in 18 (c) according to Fig. 1 to 12 or Figure 18 (a) or the seat cushion that utilizes mould to form.

Can add the front side of expression seat cushion 11 or the labelling of rear side in the appropriate location of seat cushion 11,, come thereby front side and rear side are distinguished mutually such as character or symbol.

In having the seat cushion of composite construction, adjacent layer can seam or by the groove between the layer and projection in conjunction with linking together.

Test below we have carried out is to detect the effect of seat cushion 11.Figure 25 and 26 is charts of expression result of the test.Describe the details of the seat cushion 11 that uses in the test below in detail.The thickness T 1 of underlay parts 12 is 12mm, and the thickness T 2 of underlay parts 12 is that 4mm and thickness T 3 and the T4 that goes up pad parts 13 are 15mm.The surface-supported inclination angle of seat cushion 11 is 15 degree.Underlay parts 12 are made by the EVA resin, and hardness is 50 degree.Last pad parts 13 are made by chloroprene rubber (chloroprenerubber), and hardness is 18 degree.

Measure the blood flow capacity of a large amount of persons under inspection under the situation that is sitting in by seat cushion 11 on the chair and is sitting on the chair that does not have seat cushion 11.Utilize laser doppler (laser Doppler) flowmeter survey blood flow capacity.Measure the blood volume of the finger tip of the left hand third finger.

Utilize the system of " MP100A " that limited company of BIOPAC system (BIOPAC System, Inc.) produces to obtain data and analyze.Described system comprises the " data analysis software of AcqKnowledge (3.7.0 version) of being produced by limited company of BIOPAC system equally.In addition, also use Excel 2000 softwares of producing by company of Microsoft (Microsoft).Speed collection with per second 200 samples is carried out smoothing processing about the data of blood flow capacity and to these data.These data each minute is separated by and calculated meansigma methods ± standard deviation.

Figure 25 and 26 is illustrated under the state that uses seat cushion 11 and does not use the state hematochezia current capacity fluctuation in time of seat cushion 11.Figure 25 is to obtain on one's body from different persons under inspection with the data shown in 26 the chart.These graphical presentation blood flow capacity when using seat cushion 11 when not using seat cushion 11 increase more.

Current example and embodiment should be considered to be exemplary and not restrictive, and the present invention's concrete form of being not limited to provide herein, can revise the present invention in the scope of appended claim and equivalent scope thereof.

Claims

1, a kind of posture correction device, described device are shape of cushion, and it has the stayed surface that supports anthropolith, and wherein said device comprises front-end and back-end,

2, device as claimed in claim 1 is characterized in that, described stayed surface is towards the inclination that is directed downwards of the front side that is sitting in the people on the stayed surface.

3, device as claimed in claim 1 is characterized in that, described device comprises a lower surface, and wherein lower surface is relative with described stayed surface, and angulation is the 2-30 degree between stayed surface and the lower surface.

4, device as claimed in claim 1 is characterized in that, described device comprises slit, and described slit be positioned at seat cushion width core and extend from the rear end forward end.

5, device as claimed in claim 4 is characterized in that, described slit extends 1-10cm from the rear end forward end.

6, device as claimed in claim 4 is characterized in that, described slit has relative end, and an end opening of slit is to the rear end of this device, and has than the little width of width at the other end of this slit.

7, device as claimed in claim 4 is characterized in that, described slit is opening to the back-end, and wherein the width of the opening of slit is 0-7mm, and the width 1-20mm of the inner of slit.

8, as each described device in the claim 1 to 7, it is characterized in that, comprise that having described surface-supported going up fills up parts and the underlay parts that are connected with last pad parts, and it is different to go up the hardness of filling up parts and underlay parts.

9, device as claimed in claim 8 is characterized in that, the hardness of described underlay parts is greater than the hardness of last pad parts.

10, device as claimed in claim 8 is characterized in that, the hardness of described underlay parts is the 15-85 degree, on fill up parts hardness be the 2-30 degree.

11, device as claimed in claim 8 is characterized in that, the underlay parts are from adhesive-bonded fabric, rubber, resin, and a kind of material of selecting in the synthetic of rubber and resin is made.

12, device as claimed in claim 11, it is characterized in that, rubber as the material of underlay parts is to select from a large amount of synthetic rubber that comprise butadiene-styrene rubber, and the resin that is used as the material of underlay parts is to select from ethylene-vinyl acetate (ester) copolymer, polyurethane resin, polyvinyl resin, vinyl chloride resin and acrylic resin.

13, device as claimed in claim 11 is characterized in that, described underlay parts are foam plasticss.

14, device as claimed in claim 8 is characterized in that, described upward pad parts are that a kind of material of selecting from the synthetic of rubber, resin and rubber and resin is made.

15, device as claimed in claim 14, it is characterized in that, the rubber that is used as the material of last pad parts is selected from synthetic rubber, natural rubber and Heveatex, wherein said synthetic rubber is from chloroprene rubber, acrylonitrile butadiene rubber, polyisoprene rubber, with select in the polybutadiene rubber, and wherein from polyurethane resin, fluoroplastics and organic siliconresin, select as the resin of the material of last pad parts.

16, device as claimed in claim 14 is characterized in that, described upward pad parts are foam plasticss.

17, device as claimed in claim 8 is characterized in that, on fill up parts and underlay parts one of them thickness at least on the direction from the rear end to the front end, reduce.

18, device as claimed in claim 17 is characterized in that, on fill up parts thickness be definite value.

19, device as claimed in claim 17, it is characterized in that, the thickness of the rear end of underlay parts is that the nose thickness of 3-30mm and underlay parts is 0-15mm, and the thickness that the wherein last thickness that fills up the rear end of parts is the front end of 1-30mm and last pad parts is 0-30mm.

20, as each described device in the claim 1 to 7, it is characterized in that, comprise and have the surface-supported middle pad parts of going up the pad parts, linking to each other with last pad parts, with be connected in the pad parts the underlay parts, and wherein in the pad parts hardness greater than the hardness of last pad parts less than the hardness of underlay parts.

21, as each described device in the claim 1 to 7, it is characterized in that, comprise and have the surface-supported middle pad parts of going up the pad parts, linking to each other with last pad parts, with the underlay parts that are connected to middle pad parts, the hardness of pad parts is greater than the hardness of last pad parts and underlay parts wherein, and wherein the hardness of hardness and the last pad parts of underlay parts is identical or greater than the hardness of last pad parts.